embossImage() will actually return a color image with a 3D effect. If you want a gray scale image, you can use imagefilter() from the regular GD functions.
<?php
header("Content-type: image/jpeg");
$image = new Imagick("opossum.jpg");
$image->embossImage( 0, 1 );
echo $image;
?>
Imagick::embossImage
(PECL imagick 2.0.0)
Imagick::embossImage — Returns a grayscale image with a three-dimensional effect
Descrição
bool Imagick::embossImage
( float
$radius
, float $sigma
)Returns a grayscale image with a three-dimensional effect. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, radius should be larger than sigma. Use a radius of 0 and it will choose a suitable radius for you.
Parâmetros
-
radius -
The radius of the effect
-
sigma -
The sigma of the effect
Valor Retornado
Returns TRUE on success.
Erros
Throws ImagickException on error.
DJ Mike ¶
2 years ago
